As people's access to the internet grows we're seeing the sharing economy boom - I think our obsession with ownership is at a tipping point and the sharing economy is part of the antidote for that.

There have been times when I could have succumbed to some form of bribe, or could have had my way by offering one. But ever since that night in Dover prison I have never been tempted to break my vow.. My Parents always drummed into me that all you have life is your reputation: you may be very rich, but if you lose your good name you'll never be happy.

My very first venture was a national student magazine to try to campaign against the [Vietnam] War. And so I wanted to be an editor. I wanted to bring the magazine out. And in order for the magazine to survive I had to worry about the printing and the paper manufacturing and the distribution. And, you know, I had to try to, at the end of the year, have more money coming in than going out.

There are no quick wins in business - it takes years to become an overnight success.

I'd like to see the government back a programme of research into the medical properties of cannabis and I do not object to its responsible use as a recreational relaxant.

Create the kind of workplace and company culture that will attract great talent. If you hire brilliant people, they will make work feel more like play.

You get the idea. Every business, like a painting, operates according to its own rules. There are many ways to run a successful company. What works once may never work again. What everyone tells you never to do may just work, once. There are no rules. You don't learn to walk by following rules. You learn by doing, and by falling over, and it's because you fall over that you learn to save yourself from falling over. It's the greatest thrill in the world and it runs away screaming at the first sight of bullet points.